baber/WOPTO huggingface dataset:
Patent GB-1438284-A (GB)
Title: Hand tools
IPC: B25G3/04
Filed: 1972-08-25
Abstract: 1438284 Hand tool handles PEAR TREE TOOLS Ltd 21 Aug 1973 [25 Aug 1972] 39616/72 Heading B4K A hand tool handle adapted to hold any of several different tools has a head portion comprising first and second parts which are at least partly separable to permit insertion and removal of said tools and are arranged to be clamped together by clamping means to hold the tang or tang portion of a tool between them, the first part being formed on or secured to the handle and having one or more locating recesses and/or projections for locating a tang inserted on an inner face of said part, the second part having a heel pad adapted to act as a fulcrum and a pressure pad adapted to bear against an inserted tang or tang portion. The handle 1, Fig. 1, is a moulded plastics member having a head portion 2 with a flat blade-supporting surface 3, a shoulder 4 for abutting the rear edge of a blade, a hole 5 for a fixing bolt, projections 8 which may engage the edges of a scraper blade 9, a recess 6 for a trimming knife blade 7 and a semicircular recess 11 for the stern of a shave-hook tool (Fig. 8, not shown). A separate clamping part 20 with heel 21 and clamping pad 23 is adapted to be fastened to the head portion 2 by means of a bolt and nut. A wall paper seam roller (Fig. 10, not shown) may be used with the handle.
Patent GB-345955-A (GB)
Title: Improvements in engine starting apparatus
IPC: F02N99/00
Filed: 1929-12-30
Abstract: 345,955. Stuffing-box substitutes. ECLIPSE AVIATION CORPORATION, 545, North Arlington Avenue, East Orange, New Jersey, U.S.A. Dec. 30, 1929, No. 39798. Convention date, Jan. 8. [Class 122 (v).] The housing of an engine starter of the high speed flywheel type is sealed from the oil in the crank case 12 by a flexible washer 76 carried by a cup-shaped member 75 and having its inner part pressed against an axially and rotatably moved engine - engaging clutch member 6 by a washer 78 and sleeve 77. The engaging shaft 69 is sealed by washers 79, one of which may be flexible.
Patent GB-1274494-A (GB)
Title: A method of fabricating semiconductor power devices within high resistivity isolation rings
Inventor: FOWLER WILLIAM LEE
IPC: H01L27/06
Filed: 1969-08-11
Abstract: 1,274,494. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 11 Aug., 1969 [31 Oct., 1968], No. 39982/69. Heading H1K. A method of fabricating large-area semiconductor power devices comprises growing a bar of single crystal semi-conductor material having a controlled radial resistivity variation, slicing the bar perpendicularly transverse to its longitudinal axis into plane surface wafers and forming the active regions of a power device in one of the plane surfaces of each of such wafers. The resistivity may be controlled such that each wafer has a central uniform resistivity area 62 surrounded by a high resistivity isolation area 64, the power device being formed in the central area, Fig. 3, or such that a further ring of lower resistivity material similar to the material of the central area surrounds the high resistivity isolation area, Fig. 5, not shown, this latter configuration being used for integrated circuits. In a still further embodiment the resistivity of a device may be such that a low resistivity material ring is sandwiched between an outer high resistivity material ring and a central high resistivity area, the device being formed in the low resistivity ring. The semi-conductor material is silicon and is grown in a deposition chamber on a semi-conductor filament from a thermally decomposable vapour source including a stream of hydrogen gas and trichlorosilane or other halides.
Patent GB-878216-A (GB)
Title: Improved safety device for boilers
IPC: F22B37/44
Filed: 1957-12-27
Abstract: 878,216. Fusible plugs for steam generators. STA-VAN-UTRECHT, J. Nov. 26, 1958 [Dec. 27, 1957], No. 40155/57. Class 123(2) A fusible plug 12, fitted to the crown plate 13 of a coal fired boiler 11 and connected to a pipe 14, incorporates a non- fusible metal ball 22 in the upper part of the fusible metal 15 so that, when overheating takes place and the metal 15 melts to pass into the furnace through an exit 17 steam from the boiler, entering the plug through inlets 18, forces the ball 22 on to a valve seat 21 to close the exit 17 and passes into the pipe 14. The latter leads to a cylinder and piston unit 23, 24 which, through a lever 26, operates a discharge valve 27 in a supply line leading from a tank 29 of fire extinguishing material to a spray 28 located to quench the fire in the furnace. A steam driven alarm 30 is attached to the cylinder 23. A pin 31 prevents the ball 22 from rising too high in the plug during the filling operation. The arrangement may also be used to cut off the fuel supply if a liquid or gas fuel is used.
Patent GB-939270-A (GB)
Title: A process for the production of 3-halo-iminodibenzyls
IPC: C07D/
Filed: 1960-11-23
Abstract: Compounds of the formula <FORM:0939270/IV(a)/1> where X is chlorine or bromine, are prepared by treating a compound of formula <FORM:0939270/IV(a)/2> with hydrogen at normal pressure and room temperature in the presence of a noble metal catalyst and a substantially equimolar amount of an inorganic or organic base, e.g. an alkali metal hydroxide or an amine.  A preferred catalyst is palladium.  In examples in which X is chlorine, iminodibenzyl is obtained as a by-product, and is isolated, after fractional distillation of the product, by crystallisation from methanol; or the desired fraction is reacted with acetyl chloride, the 5-acetyliminodibenzyl is separated from the 5-acetyl3-chloro-iminodibenzyl by fractional crystallisation, and the latter hydrolysed to 3-chloroiminodibenzyl.  The compounds of formula I react with dialkylaminoalkyl halides to give medicinal compounds, such as 5-(g -dimethyl-aminopropyl)-3-chloro-iminodibenzyl. Specification 777,546 also is referred to.
Patent GB-1184760-A (GB)
Title: Process for the Production of Pigments and Fillers
IPC: C09C1/40
Filed: 1968-08-23
Abstract: 1,184,760. Alkatine earth and/or aluminium silicates. ELEKTROCHEMISCHES KOMBINAT BITTERFIELD VEB. 23 Aug., 1968, No. 40515/68. Heading C1A. Alkaline earth metal and/or aluminium silicates are prepared by continuously combining a solution of a mineral acid salt of an alkaline earth metal and/or aluminium with an alkali metal silicate solution, preferably water glass, with intensive mixing e.g. by a high-speed stirrer, at ambient temperatures, the concentrations of the reacting components being kept constant and the pH being maintained at that value which produces isoelectric conditions. The concentrations of the solutions may be such that the suspension produced contains 10-15% of precipitate, based on product dried at 105‹ C. Isoelectric conditions are maintained either by reacting similar volumes of the two solutions in equal times, one containing a suitable quantity of acid or alkali, or by feeding acid or alkali into the reaction mixture through a feed device operated via a pH probe. The suspension produced may have its pH adjusted to 6-9 by the addition of a solution containing mineral acid or an aluminium salt, and then be filtered continuously, washed, and dried.
Patent GB-994665-A (GB)
Title: Portable oil well drilling apparatus
IPC: E21B15/00
Filed: 1961-09-29
Abstract: 994,665. Boring earth &c. L. C. MOORE CORPORATION. Sept. 29, 1961 [Dec. 9, 1960], No. 40582/64. Divided out of 994,663. Drawings to Specification. Heading E1F. The subject-matter of this Specification is identical with that described in Specification 994,663, but the claims differ. Specification 994,664 also is referred to.
Patent GB-1169294-A (GB)
Title: Damped Plate Valve for Compressors or the like
IPC: F16K15/08
Filed: 1967-09-06
Abstract: 1,169,294. Valves. COOPER INDUSTRIES Inc. 6 Sept., 1967 [7 Sept., 1966], No. 40654/67. Heading F2V. A plate valve for fluid flow control comprises a valve body having a fluid passage 13 therein, a valve guard 22 having a fluid passage 18 therein, a flat annular valve plate 16 normally kept in a closed position by means 17 so that flow between the passages is prevented, and a recess 25 into which the plate is forced when moved into the open position by fluid pressure, the walls of the recess being sufficiently close to the plate to throttle the flow of fluid into and out of the recess during operation of the valve. Two circular series of flow passages 18, 19 may be formed in the valve guard which is mounted in the cylinder inlet of a reciprocating compressor. The valve plate may have a clearance of 0À003 to 0À005 from the recess and be held on its seat by helical, semicircular leaf or circular undulating springs.
Patent GB-1012120-A (GB)
Title: Improvements in or relating to the treatment of paper and paper products
Inventor: VAURIO FRANS V E
IPC: D21H21/26
Filed: 1961-11-14
Abstract: Paper or a paper product is treated to produce a 'watermark' therein or to increase the overall transparency by applying a solution of 30-70% by weight of sucrose acetate-butyrate or-isobutyrate and/or an alkali metal salt of an alkyl sulphosuccinate in an inert organic solvent having a B. P. between 100 and 250 DEG C.  Preferred salts which may be used are sucrose acetate isobutyrate, sodium dioctyl sulphosuccinate, sodium dihexyl sulphosuccinate, or sodium dianyl sulphosuccinate, but corresponding salts of other alkali metals may be used. Examples of suitable solvents are ethylene glycol, its monomethyl, monoethyl, diethyl and diphenyl ethers, the monomethyl and monoethyl ethers of diethylene glycol and benzyl alcohol. Examples are given of the treatment of a number of different papers with preferred solutions.
Patent GB-1316589-A (GB)
Title: Flexible cylinders for use as squeeze tube bodies
IPC: B29D23/20
Filed: 1970-08-25
Abstract: 1316589 Moulding tubes POLYTUBE Inc 25 Aug 1970 [28 Aug 1969] 40864/70 Heading B5A [Also in Divisions B8 and F2] A flexible cylinder for use as the body of a collapsible, tubular container, e.g. for toothpaste, is made from a laminate of metal foil sandwiched between plastics layers, the laminate being convolutely wound through approximately 720 degrees (Fig. 6), placed in a cylindrical mould, urged outwardly against the mould surface by an inflatable mandrel, and heated by conduction through the mould so that the plastics layers fuse together (Fig. 4). The foil 110 may be of aluminium and the plastics material 106 polyethylene. The convolute winding is effected in a chamber 138, Fig. 12, having a tangential entry 150, by a driven rubber roll 154. The cylindrical preform is then pushed from chamber 138 into one of a number of cylindrical moulds 142b, Figs. 16, 17 and 23, mounted on an indexable table, Figs. 18, 20-22 (not shown). After indexing the table one step a rod 174 carrying a balloon mandrel 172 is inserted and inflation to the Fig. 17 position effected. The wall thickness of balloon 172 increases towards its ends so that inflation begins midway along the balloon's length. This ensures elimination of air from between adjacent turns of the cylindrical preform. Semicylindrical heating blocks 212 are now clamped around the mould 142b. After fusion of the plastics layers, the table is indexed to move the mould 142b through three cooling stations, at each of which cooling shells, similar in form to heating shells 212, are clamped around the mould. The balloon 172 is deflated and immediately reflated between the second and third cooling stations and is finally deflated after the third cooling station to break any bond between the formed cylinder and the mould. To remove the cylinder from the mould, a pick-up tube, Figs. 27-34 (not shown), similar in form to the inflatable mandrel, is inserted into the cylinder, inflated, withdrawn (together with the cylinder) from the mould, deflated and passed longitudinally through a slot in a plate to strip the cylinder from the pick-up tube.
Patent GB-1498969-A (GB)
Title: Determining the dose equivalent or dose rate equivalent of neutrons
IPC: G01T3/00
Filed: 1975-10-06
Abstract: 1498969 Neutron responsive apparatus KERNFORSCHUNGSANLAGE JULICH GmbH 6 Oct 1975 [8 Oct 1974] 40866/75 Heading G6P Neutron responsive apparatus comprises: a neutron detector for emitting, in operation, energy-dependent voltage pulses having a maximum number at a level corresponding to the region of the energy liberated in the nuclear process occurring upon neutron absorption; a voltage discriminator set or adjustable to a level above that corresponding to at least 80% of the pulses; and means for counting the number or time-averaging the emission rate of pulses emitted by the discriminator. The detector I, Fig. 1, may comprise a <SP>3</SP>He or BF 3  counter tube or a <SP>6</SP>LiI scintillator. If a <SP>3</SP>He counter tube is used, wherein nuclear reactions liberate an energy of 770 keV in response to thermal neutrons, the voltage discriminator may be set to a level corresponding to an energy of 800-850 keV. The detector 1 may be surrounded with an absorber layer 2 of cadmium of thickness 0À1- 2 mm. to absorb neutrons of energy lower than 0À5 eV. This will substantially reduce the number of voltage pulses produced by lowenergy neutrons in the detector, and enable the threshold of the discriminator to be set at a lower value. If neutrons of energy levels below 0À5 eV are to be measured, the cadmium layer may be perforated.  A moderating casing 3 may be provided, of hydrogenous material, e.g. polyethylene, having a wall thickness of 3-5À5 cm. For use as a personal dosimeter, part or all of the casing 3 may be omitted at least in the region nearest the body of the wearer, since the body then functions as a moderator.
Patent GB-1318776-A (GB)
Title: Surgical blade handle
IPC: A61B17/32
Filed: 1970-08-25
Abstract: 1318776 Surgical blade handle R C BASSETT 25 Aug 1970 [27 Aug 1969] 40890/70 Heading B4K A surgical blade handle comprises a handle tube 28 having a socket end 27 with a slot therein, a surgical blade holder 20 projecting through the slot and a clamping rod 30 in screw threaded engagement with handle tube 28 and having an end 30A to engage end 29 of the blade holder so that the blade holder can be moved in the said slot and held in any angular position therein. A surgical blade (24), Fig. 1 (not shown) fits into groove 22 and against either face 23A or face 23B dependent if it is assembled for right hand or left hand use. In another embodiment, Fig. 7, the surgical blade holder comprises two jaws 37, 38. The jaws are held apart by spring 39 so that when a blade is placed between them they have to be manually closed so that keys 41, 43 engage in recesses 42, 44. When rod 30 is tightened the interaction between the ends of the jaws pivots jaw 37 counterclockwise. Also jaw 38 moves forward so that edges 41A, 43A and walls 42A, 44A engage to produce a camming action to move the jaws together. Thus the jaws are firmly clamped together. Rod 30 has a spacer flange 34 to prevent buckling thereof. The slot in socket end 27 allows the blade holder to pivot at least 180 degrees.
Patent GB-1040459-A (GB)
Title: Improvements in tipper lorries
IPC: B60P1/28
Filed: 1963-10-18
Abstract: 1,040,459. Tipping vehicles. S. G. MITCHELL. July 24, 1964 [Oct. 18, 1963], No. 41178/63. Heading B7B. A heat insulated vehicle body having inner and outer metal plates spaced apart by heat insulating slab material has its upper part closed by pairs of similarly insulated hinged doors 43 which fold back on themselves to facilitate loading, the insulated tail gate 8 being pivoted for normal tipping discharge of the load.
Patent GB-1260782-A (GB)
Title: Pressure difference indicating system
IPC: B60T17/22
Filed: 1970-08-27
Abstract: 1,260,782. Brake failure indicators. BENDIX CORP. 27 Aug., 1970 [15 Sept., 1969], No. 41332/70. Heading F2E. [Also in Division G1] A warning arrangement for indicating a difference in pressure between two normally equal independent pressures, such as the pressures 14, 16 of a split fluid pressure braking system, comprises two diaphragms 32, 32a influenced by the two pressures and acting, through projections 46, 46a, on piezo-electric elements 42, 42a. These are of equal but opposite construction and are connected to a common output lead 20 whose potential is normally zero. Should a substantial difference in pressure occur, the potential arising on lead 20 operates a control unit 24 to actuate a warning device 30. The control unit 24 may comprise a thyristor operated directly (Fig. 4, not shown) or via a field effect transistor (Fig. 3, not shown). The two separate units 18, 18a may be replaced by a single unit (Fig. 2, not shown) in which the piezo-electric elements act as a divider. As shown, a vehicle brake pedal 10, a master cylinder 12, and an ignition switch 28 are provided.  Each piezo-electric element 42, or 42a, comprises two layers of lead zirconate titanate bonded together and polarized in the senses shown.
Patent GB-1308417-A (GB)
Title: Vehicle suspension
IPC: B60G7/00
Filed: 1971-09-07
Abstract: 1308417 Tandem axle suspensions HENDRICKSON MFG CO 7 Sept 1971 [28 Sept 1970] 41719/71 Addition to 1242941 Heading B7D In a tandem axle suspension comprising as described in the main patent equalizing beams 15 which are pivoted on saddles 20 and are formed by two overlapping sections 30, 31 connected by resilient bushing assemblies 35, 36, each resilient bushing assembly 36 also serves to pivotally connect the beam 15 to the saddle 20. The bushing assembly 36 comprises a first rubber bush 56 interposed between a cross shaft 18 carried by the saddles 20 and a metal bush 56 seated in holes 37, 37<SP>1</SP> in the beam section 30, and a second rubber bush 53 interposed between a metal bush 52 on the bush 56 and a metal bush 50 seated in a bore 38 in the beam section 31.
Patent GB-1082946-A (GB)
Title: Improvements in or relating to saw tooth wave form generating circuit arrangements
Inventor: FULFORD JOHN FRANCIS
IPC: H03K6/00
Filed: 1963-10-24
Abstract: 1,082,946. Saw-tooth circuits. MARCONI INSTRUMENTS Ltd. Sept. 23, 1964 [Oct. 24, 1963], No. 41966/63. Heading H3P. A ramp waveform of long period is generated by superimposing a short period ramp wave form on an appropriate staircase waveform. As shown, pulses from a generator 1 are fed to a chain of binary frequency dividers 5 the outputs of which are superimposed at 6 to provide a staircase waveform of the required period, each step occurring at the time of each pulse from generator 1. A short period saw-tooth waveform is generated by charging capacitor 3 via a constant current device 2 and discharging it at 4 under control of each pulse from generator 1. The saw-tooth waveform is passed by the buffer amplifier 7 to an adding circuit 8 where it is superimposed on the staircase waveform to provide a linear ramp of long period at 9. The staircase waveform may have 512 steps each lasting five seconds so that the output ramp waveform will have a period of 2560 seconds and a flyback time of 10<SP>-4</SP> seconds. The period of the output waveform may be adjustable by variation of the frequency of generator 1 and simultaneous variation of the constant current 2 so that the short period ramp accurately fills in the staircase waveform.
Patent GB-1234766-A (GB)
Title: Vapour phase oxidation of diols
Inventor: HOWE BRIAN KEITH
IPC: C07C45/38
Filed: 1967-09-15
Abstract: 1,234,766. Vapcur phase oxidation of 1,2- diols. LAPORTE CHEMICALS Ltd. 12 Dec., 1968 [15 Sept., 1967], No. 42180/67. Heading C2C. A hydroxycarbonyl compound is obtained by contacting a gaseous mixture containing a 1,2- diol of the general formula RCH(OH)CH 2 OH, wherein R is H, methyl, ethyl, n-propyl or isopropyl group with molecular oxygen, the molar ratio of oxygen to the diol in the gaseous mixture being less than 4: 1 in the presence of a metallic copper, silver or gold catalyst having a surface area of less than 50 square metres per gram. The gaseous mixture preferably contains a diluent gas, e.g. nitrogen, CO 2 , argon or helium and water vapour should also desirably be present. The reaction temperature may be between the b.pt. of the diol and about 500‹ C., e.g. between 250‹ and 350‹ C. Examples are given for the oxidation of ethylene glycol to form glycollic aldehyde together with some glyoxal and a small amount of glycollic acid, the catalyst being either pure copper gauze spirals of surface area of less than 5 m.<SP>2</SP>/g. or a metallic silver catalyst in the form of spirals of surface area less than 5 m.<SP>2</SP>/g. When R is methyl the products are acetol and 2-hydroxy propionaldehyde.
Patent GB-1246357-A (GB)
Title: Improvements relating to impact mechanisms
Inventor: ALEXANDROV EVGENY USEVOLODOVIC
IPC: B25D17/06
Filed: 1969-08-25
Abstract: 1,246,357. Percussive tools. INSTITUT GORNOGO DELA IMENI A.A. SKOCHINSKOGO. 25 Aug., 1969, No. 42180/69. Heading B4C.  A percussive tool, e.g. a drill, a hammer or a tamper comprises a striker piston 2 which drives a tool bit 12 via a displaceable anvil 4 and a resilient cushion. The tool is pneumatically actuated, having an air inlet 13, a distributing valve 3, and passages 7 leading to chambers 8, 9. The air trapped in chamber 9 forms a pneumatic cushion between the piston 2 and anvil 4; air in this chamber 9 may be replaced by other resilient material or springs and the piston 2 may be a thin-walled hollow cylinder constructed from a polymeric material, e.g. " Plexiglas," " Caprolite " (Registered Trade Marks) or steel.
Patent GB-1144428-A (GB)
Title: Method and apparatus for making window can closures
IPC: B21D51/44
Filed: 1967-09-19
Abstract: 1,144,428. Seaming non-metallic sheet material. CONTINENTAL CAN CO. Inc. 19 Sept., 1967 [23 Sept., 1966], No. 42676/67. Heading B5K. [Also in Divisions B3 and B8] A method of forming a composite container end closure comprises applying sheet material to a dished and peripherally flanged ring having a central hole, holding the material by clamping it outside the ring flange, stretching the material by pressing its central free portion against the ring, and securing the sheet material to the ring flange. The end ring 13, Fig. 2, may be of plastics or metal, to which the sheet material 12 is secured. As shown, the ring 13 has a groove 16, and the sheet material 12 lying in the groove is covered with sealing material 20. The sheet material 12 may be a transparent plastics, or a laminate of plastics, or plastics and metal foil, or plastics, fibre and foil. The sheet material 12 is heat-bonded to the ring 14. Apparatus for bonding the sheet material S, Fig. 4, to a ring 13 comprises an upper, vertically-reciprocable platform 24 and a lower, fixed platform 25, with forming members thereon. A ring 13 is placed upon an end support 33, fixed to the platform 25. The ring 13 is arranged with its groove 16 uppermost, Fig. 5 (not shown). The upper platform 24 is lowered towards the lower platform 25, so that spring- mounted gripping rings 27 engage and hold the sheet material, Fig. 6 (not shown). As the upper platform 24 continues to be lowered, springs 31, 52 are compressed, and an inner forming member 55 engages its lower shaped end 56 with the sheet material S, and forces it into the ring groove 16, Fig. 7 (not shown). Continued downward movement of the upper platform 24 acts through springs 60, the forming ring 55, and the container end ring 14 to compress springs 35, sliding downwards the container end support 33 against the bias of springs 35, Fig. 8 (not shown). When downward movement of the container end support 33 is arrested by engagement with a block 38, the continued downward movement of the upper platform 24 forces a circular knife 54 fast thereon through the sheet material S, which is accordingly cutoff just outside the ring 13. An electric heating element 46 in the block 38 then bonds the sheet material S to the ring 13. When bonding has been completed, the upper platform 24 is raised, vacuum applied by a pipe 61 holding the container end wall on the forming member 55, Fig. 9 (not shown), so that it is raised clear of the end support 33.